a) a-2017=2806 a= 2806- 2017 a=789 v:789+2017= 2806..c).c- 1009=8908 a=8908_1009 a =7899 v:7899+1009=8908 .b)..b_5639=3245 a=3245_5639 a=2394 v:2394+3245=5639 d)d- 3769=3029 a=3029- 3769 a=740 v: 740_3769=3029 e) e- 2320=1820 a =1280+2320 a=3600 v:3600- 1280=2320 f)f - 2930=1120 a 1120- 2930 a =1810 v: 1810- 2930=1120
